What is the fluid outside the axon in a resting state composed of?

What is the fluid outside the axon in a resting state composed of?
  1. Low concentration of K⁺ and high concentration of Na⁺
  2. High concentration of K⁺ and low concentration of Na⁺
  3. Low concentration of both K⁺ and Na⁺
  4. High concentration of both K⁺ and Na⁺

Solution

The fluid outside the axon in a resting state contains a low concentration of K⁺, a high concentration of Na⁺ and thus form a concentration gradient.

Asked in: NCERT

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